Changed how speech interruptions are handled hopefully improved things being interrupted when they shouldn't be.

tests/test_speechdispatcher_interrupt_regressions.py

@@ -30,6 +30,14 @@ class SpeechDispatcherInterruptRegressionTests(unittest.TestCase):
         server._cancel.assert_called_once_with()
         server._speak.assert_called_once_with("long utterance", None)
 
+    def test_string_speech_queues_by_default(self):
+        server = self._make_server()
+
+        server.speak("next")
+
+        server._cancel.assert_not_called()
+        server._speak.assert_called_once_with("next", None)
+
     def test_recent_key_echo_suppresses_backend_cancel(self):
         server = self._make_server()
         server._lastKeyEchoTime = time.time()